Manufacturing method of quartz glass crucible
US-2025313985-A1 · Oct 9, 2025 · US
doped with beryllium, magnesium or alkaline earth metals
doped with beryllium, magnesium or alkaline earth metals · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C03B2201/54 |
| Official title | doped with beryllium, magnesium or alkaline earth metals |
| Display label | doped with beryllium, magnesium or alkaline earth metals |
| Total patents | 43 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 5 |
| 2017 | 3 |
| 2018 | 3 |
| 2019 | 2 |
| 2020 | 4 |
| 2021 | 4 |
| 2022 | 2 |
| 2023 | 10 |
| 2024 | 2 |
| 2025 | 6 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for producing optical fiber base material, and optical fiber base material
US-12398062-B2 · Aug 26, 2025 · US
Quartz glass crucible and manufacturing method thereof
US-12371812-B2 · Jul 29, 2025 · US
Optical fiber
US-2025147229-A1 · May 8, 2025 · US
Silica glass body manufacturing method and heating device
US-2025091932-A1 · Mar 20, 2025 · US
Optical fiber
US-12216309-B2 · Feb 4, 2025 · US
Method of manufacturing optical fiber preform and method of manufacturing optical fiber
US-2024383796-A1 · Nov 21, 2024 · US
Optical fiber and optical fiber base material
US-2024327271-A1 · Oct 3, 2024 · US
Optical fiber
US-11740404-B2 · Aug 29, 2023 · US
Optical fiber
US-2023266523-A1 · Aug 24, 2023 · US
Method for producing optical fiber base material, and optical fiber base material
US-2023202904-A1 · Jun 29, 2023 · US
System and method for optical fiber preform preparation via high-surface-area coating
US-11655183-B2 · May 23, 2023 · US
Optimized core particles for optical fiber preform and optical fiber preform thereof
US-2023069378-A1 · Mar 2, 2023 · US
Method for manufacturing an optical fibre and optical fiber thereof
US-2023064814-A1 · Mar 2, 2023 · US
Method for drawing an optical fiber using rod-in cylinder technique
US-2023060842-A1 · Mar 2, 2023 · US
Optical fibre preform and method of manufacturing thereof
US-2023061100-A1 · Mar 2, 2023 · US
Ultra-low loss optical fiber
US-2023066680-A1 · Mar 2, 2023 · US
Quartz glass crucible and manufacturing method thereof
US-2023010489-A1 · Jan 12, 2023 · US
Optical fiber
US-11467340-B2 · Oct 11, 2022 · US
Tempered glass plate and method for producing same
US-2022112126-A1 · Apr 14, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C03B2201/54?
- CPC C03B2201/54 is the Cooperative Patent Classification code for “doped with beryllium, magnesium or alkaline earth metals.”
- How many patents are filed under CPC C03B2201/54 (doped with beryllium, magnesium or alkaline earth metals)?
- Our database includes 43 publications tagged with this CPC code.
- Is patent activity under CPC C03B2201/54 growing?
- Publication counts under this code: 2 in 2024 vs 6 in 2025 (latest complete years).